The Hero's Path

an arena in the Dungeon can be used as a "perpetual motion machine" for earning money.

So, you can simply stand near a mill and skip turns, or deposit money in the bank and wait. Let's attribute all these possibilities to the player's integrity.
Also, if it's not too much trouble, I would appreciate it if players who have completed the game could post screenshots of their in-game statistics, at least the first page. I love collecting statistics about statistics :)